219
(MT11 - Gb2012)
4+1
INTERCOMS *
7+1
VIDEOINTERCOMS
JP1
J2
9M
5
F
4
1
C
JP5
1 2 3
1
14
J2
1 2 3
All installation diagrams in this technical manual are drawn with only one video intercom for each user. It is possible to “personalise” the installation
by properly matching the applications on the following pages (page 222 to 229) to the basic diagrams (page 189 to page 217). Such examples
refer to applications with one video intercom entrance. To realise systems with 2 or more audio/video entrances were more than one control switch
ON is needed, use for this function the first buttons of the video intercom (P, P1, P2, etc.) and the lower ones (P3, P4, etc.) for the intercommunicating
calls.
In the basic diagrams the dashed lines identify the wires for control switch ON, whereas in the additional diagrams the dashed lines also refer to
the wires for intercommunicating service.
When the simultaneous switch ON of several video intercoms is needed and extra power supplies are to be added, do not forget that terminal IV
of timer 1282E can be connected to a maximum of 3 power supplies 1281.
EXTENSION OF VIDEO INTERCOM SYSTEM
Additional diagrams
NOTES
1) To provide the intercommunicating service,
make the dashed connections, install the mod-
ule 1443E inside timer 1282E
.
2) The diode shown in this installation diagram
must be connected to power video distributors
DV2 and DV4. If the system is realized with
twisted pair, or if video distributors are not
used, the diode must not be connected.
3) If the video system is realized with coaxial cable
connected in serial mode (input and output from
the video intercom), you must cut the 75
Ω
resis-
tance R8 of the bracket and leave it only on the
last video intercom.
JP3
JP4
Y X P
V
M
V
R8
R10
R7
R8
JP3
JP4
Y X P
V
M
V
R8
R10
R7
R10
R7
4) (Only Studio series)
Additional diagrams refer to video connection with coaxial cable.
If the system is realized with twisted pair, it is necessary to:
- connect the pair to terminals X and Y and leave terminals V and
M unconnected;
- move the jumper J2 of bracket WB7100 from position 1-2 to 2-
3.
- if the installation diagram includes more than 2 video intercoms
in parallel make the video connection with distributors DV..D (or
connect them serially cutting the 75
Ω
resistances R7 and R10 of
bracket WB7100 and leaving them only on the last video inter-
com).
VC1
VC2
VC3
ST720+
WB700+
ST701
ST720+
WB700+
ST701
ST720+
WB700+
ST701
8
V
M
F
H
1
2
3
4
5
9M
PC
P
1C
9R
230V
127V
0
RL37
1281
A
I
IV
9
C
P1
C
P2
C
P3
P1
C
9
C
P2
C
P3
P1
C
P2
C
9
C
P3
9R
7
9M
H
B
9P
CT1
1
2
3
5
9
3A
ST
704
P1
C
P2
C
P3
C
9A
ST720+
ST701+
ST704
1
2
3
8
V
M
F
H
1
2
3
4
5
9M
PC
P
1C
9R
8
V
M
F
H
1
2
3
4
5
9M
PC
P
1C
9R
OUT
PA
PA
SE
SE
IN
DV2
DV4
230V
127V
0
1282E
4
3
2
1
2D
1D
3D
5
7
xn
xn
x2
x2
1281
MD1.
MD2.
MD30
MD7.
MD1.
MD2.
MD30
MD7.
MD41
MD41
4
IN
I
A
H
V
M
H
V
M
4
3
2
1
4
3
2
1
P
P
P
P
P
P
C
C
A
A
Mody
Mody
Matrix
Matrix
MA4.
MA4.
MA2.
MA6.
MA7.
MA2.
MA6.
MA7.
IV
H
A
3+
10a
9a
8a
7a
12b
11b
3
6
1273TV
H
V
M
H
V
M
10b
9b
8b
7b
4
3
2
1
12a
11a
F
X
1
2
H
S
C+
12
11
10
2
1
7
5
4
9
8
To terminal P of the video inter-
coms. It is also necessary to con-
nect 1C and PC.
Example of combination of an additional diagram with a basic
diagram for the realisation of a one-way system with intercoms and
video intercoms in parallel with or without intercommunicating
service (description on page 220).
1443E
1282E
Содержание ECHOS
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